//MooTools, My Object Oriented Javascript Tools. Copyright (c) 2006 Valerio Proietti, <http://mad4milk.net>, MIT Style License.

var MooTools = {
	'version': '1.2dev',
	'build': '815'
};

function $extend(src, add){
	if (!add){
		add = src;
		src = this;
	}
	for (var prop in add) src[prop] = add[prop];
	return src;
};

var Native = function(){
	for (var i = arguments.length; i--;){
		arguments[i].extend = function(props){
			for (var prop in props){
				if (!this.prototype[prop]) this.prototype[prop] = props[prop];
				if (!this[prop]) this[prop] = Native.generic(prop);
			}
		};
	}
};

Native.generic = function(prop){
	return function(bind){
		return this.prototype[prop].apply(bind, Array.prototype.slice.call(arguments, 1));
	};
};

Native.setFamily = function(natives){
	for (var type in natives) natives[type].prototype.$family = type;
};

Native(Array, Function, String, RegExp, Number);
Native.setFamily({'array': Array, 'function': Function, 'string': String, 'regexp': RegExp});

function $A(iterable, start, length){
	start = start || 0;
	if (start < 0) start = iterable.length + start;
	length = length || (iterable.length - start);
	var array = [];
	for (var i = 0; i < length; i++) array[i] = iterable[start++];
	return array;
};

function $chk(obj){
	return !!(obj || obj === 0);
};

function $clear(timer){
	clearTimeout(timer);
	clearInterval(timer);
	return null;
};

function $defined(obj){
	return (obj != undefined);
};

function $empty(){};

function $merge(){
	var mix = {};
	for (var i = 0; i < arguments.length; i++){
		for (var property in arguments[i]){
			var ap = arguments[i][property];
			var mp = mix[property];
			if (mp && $type(ap) == 'object' && $type(mp) == 'object') mix[property] = $merge(mp, ap);
			else mix[property] = ap;
		}
	}
	return mix;
};

function $pick(){
	for (var i = 0, l = arguments.length; i < l; i++){
		if ($defined(arguments[i])) return arguments[i];
	}
	return null;
};

function $random(min, max){
	return Math.floor(Math.random() * (max - min + 1) + min);
};

function $splat(obj){
	var type = $type(obj);
	if (type && type != 'array') obj = [obj];
	return obj;
};

function $time(){
	return new Date().getTime();
};

function $try(fn, bind, args){
	try {
		return fn.apply(bind || fn, $splat(args) || []);
	} catch(e){
		return false;
	}
};

function $type(obj){
	if (obj == undefined) return false;
	if (obj.$family) return obj.$family;
	if (obj.htmlElement) return 'element';
	var type = typeof obj;
	if (obj.nodeName){
		switch (obj.nodeType){
			case 1: return 'element';
			case 3: return (/\S/).test(obj.nodeValue) ? 'textnode' : 'whitespace';
		}
	} else if (typeof obj.length == 'number'){
		if (obj.item) return 'collection';
		if (obj.callee) return 'arguments';
	}
	if (type == 'number' && !isFinite(obj)) return false;
	return type;
};
window.extend = document.extend = $extend;
window.$family = 'window';
document.$family = 'document';
document.head = document.getElementsByTagName('head')[0];

var Client = {
	Engine: {'name': 'unknown', 'version': ''},
	Platform: {},
	Features: {}
};
Client.Features.xhr = !!(window.XMLHttpRequest);
Client.Features.xpath = !!(document.evaluate);
if (window.opera) Client.Engine.name = 'opera';
else if (window.ActiveXObject) Client.Engine = {'name': 'ie', 'version': (Client.Features.xhr) ? 7 : 6};
else if (!navigator.taintEnabled) Client.Engine = {'name': 'webkit', 'version': (Client.Features.xpath) ? 420 : 419};
else if (document.getBoxObjectFor != null) Client.Engine.name = 'gecko';
Client.Engine[Client.Engine.name] = Client.Engine[Client.Engine.name + Client.Engine.version] = true;
Client.Platform.name = navigator.platform.match(/(mac)|(win)|(linux)|(nix)/i) || ['Other'];
Client.Platform.name = Client.Platform.name[0].toLowerCase();
Client.Platform[Client.Platform.name] = true;
if (typeof HTMLElement == 'undefined'){
	var HTMLElement = $empty;
	if (Client.Engine.webkit) document.createElement("iframe");
	HTMLElement.prototype = (Client.Engine.webkit) ? window["[[DOMElement.prototype]]"] : {};
}
HTMLElement.prototype.htmlElement = $empty;
HTMLElement.prototype.$family = 'element';
if (Client.Engine.ie6) $try(function(){
	document.execCommand("BackgroundImageCache", false, true);
});

var Class = function(properties){
	properties = properties || {};
	var klass = function(){
		var self = (arguments[0] !== $empty && this.initialize && $type(this.initialize) == 'function') ? this.initialize.apply(this, arguments) : this;
		if (this.options && this.options.initialize) this.options.initialize.call(this);
		return self;
	};

	if (properties.Implements){
		$extend(properties, Class.implement($splat(properties.Implements)));
		delete properties.Implements;
	}

	if (properties.Extends){
		properties = Class.extend(properties.Extends, properties);
		delete properties.Extends;
	}

	$extend(klass, this);
	klass.prototype = properties;
	klass.prototype.constructor = klass;
	klass.$family = 'class';
	return klass;
};

Class.empty = $empty;

Class.prototype = {

	constructor: Class,

	extend: function(properties){
		return new Class(Class.extend(this, properties));
	},

	implement: function(){
		$extend(this.prototype, Class.implement($A(arguments)));
		return this;
	}

};

Class.implement = function(sets){
	var all = {};
	for (var i = 0, l = sets.length; i < l; i++) $extend(all, ($type(sets[i]) == 'class') ? new sets[i]($empty) : sets[i]);
	return all;
};

Class.extend = function(klass, properties){
	var proto = new klass($empty);
	for (var property in properties){
		var pp = proto[property];
		proto[property] = Class.merge(pp, properties[property]);
	}
	return proto;
};

Class.merge = function(previous, current){
	if ($defined(previous) && previous != current){
		var type = $type(current);
		if (type != $type(previous)) return current;
		switch (type){
			case 'function':
				var merged = function(){
					this.parent = arguments.callee.parent;
					return current.apply(this, arguments);
				};
				merged.parent = previous;
				return merged;
			case 'object': return $merge(previous, current);
		}
	}
	return current;
};

var Abstract = function(obj){
	return $extend(this, obj || {});
};

Native(Abstract);

Abstract.extend({

	each: function(fn, bind){
		for (var property in this){
			if (this.hasOwnProperty(property)) fn.call(bind || this, this[property], property);
		}
	},

	remove: function(property){
		delete this[property];
		return this;
	},

	extend: $extend

});

Client = new Abstract(Client);

var Chain = new Class({

	chain: function(fn){
		this.$chain = this.$chain || [];
		this.$chain.push(fn);
		return this;
	},

	callChain: function(){
		if (this.$chain && this.$chain.length) this.$chain.shift().delay(10, this);
	},

	clearChain: function(){
		if (this.$chain) this.$chain.empty();
	}

});

var Events = new Class({

	addEvent: function(type, fn, internal){
		if (fn != $empty){
			this.$events = this.$events || {};
			this.$events[type] = this.$events[type] || [];
			this.$events[type].include(fn);
			if (internal) fn.internal = true;
		}
		return this;
	},

	addEvents: function(events){
		for (var type in events) this.addEvent(type, events[type]);
		return this;
	},

	fireEvent: function(type, args, delay){
		if (this.$events && this.$events[type]){
			this.$events[type].each(function(fn){
				fn.create({'bind': this, 'delay': delay, 'arguments': args})();
			}, this);
		}
		return this;
	},

	removeEvent: function(type, fn){
		if (this.$events && this.$events[type]){
			if (!fn.internal) this.$events[type].remove(fn);
		}
		return this;
	},

	removeEvents: function(type){
		for (var e in this.$events){
			if (!type || type == e){
				var fns = this.$events[e];
				for (var i = fns.length; i--;) this.removeEvent(e, fns[i]);
			}
		}
		return this;
	}

});

var Options = new Class({

	setOptions: function(options){
		this.options = $merge(this.options, options);
		if (this.addEvent){
			for (var option in this.options){
				if ((/^on[A-Z]/).test(option) && $type(this.options[option] == 'function')) this.addEvent(option, this.options[option]);
			}
		}
		return this;
	}

});

Array.extend({

	every: function(fn, bind){
		for (var i = 0, l = this.length; i < l; i++){
			if (!fn.call(bind, this[i], i, this)) return false;
		}
		return true;
	},

	filter: function(fn, bind){
		var results = [];
		for (var i = 0, l = this.length; i < l; i++){
			if (fn.call(bind, this[i], i, this)) results.push(this[i]);
		}
		return results;
	},

	forEach: function(fn, bind){
		for (var i = 0, l = this.length; i < l; i++) fn.call(bind, this[i], i, this);
	},

	indexOf: function(item, from){
		var len = this.length;
		for (var i = (from < 0) ? Math.max(0, len + from) : from || 0; i < len; i++){
			if (this[i] === item) return i;
		}
		return -1;
	},

	map: function(fn, bind){
		var results = [];
		for (var i = 0, l = this.length; i < l; i++) results[i] = fn.call(bind, this[i], i, this);
		return results;
	},

	some: function(fn, bind){
		for (var i = 0, l = this.length; i < l; i++){
			if (fn.call(bind, this[i], i, this)) return true;
		}
		return false;
	},

	reduce: function(fn, value){
		var i = 0;
		if (arguments.length < 2 && this.length) value = this[i++];
		for (var l = this.length; i < l; i++) value = fn.call(null, value, this[i], i, this);
		return value;
	},

	associate: function(obj){
		var routed = {};
		var objtype = $type(obj);
		if (objtype == 'array'){
			var temp = {};
			for (var i = 0, j = obj.length; i < j; i++) temp[obj[i]] = true;
			obj = temp;
		}
		for (var oname in obj) routed[oname] = null;
		for (var k = 0, l = this.length; k < l; k++){
			var res = (objtype == 'array') ? $defined(this[k]) : $type(this[k]);
			for (var name in obj){
				if (!$defined(routed[name]) && ((res && obj[name] === true) || obj[name].contains(res))){
					routed[name] = this[k];
					break;
				}
			}
		}
		return routed;
	},

	contains: function(item, from){
		return this.indexOf(item, from) != -1;
	},

	copy: function(start, length){
		return $A(this, start, length);
	},

	extend: function(array){
		for (var i = 0, j = array.length; i < j; i++) this.push(array[i]);
		return this;
	},

	getLast: function(){
		return (this.length) ? this[this.length - 1] : null;
	},

	getRandom: function(){
		return (this.length) ? this[$random(0, this.length - 1)] : null;
	},

	include: function(item){
		if (!this.contains(item)) this.push(item);
		return this;
	},

	merge: function(array){
		for (var i = 0, l = array.length; i < l; i++) this.include(array[i]);
		return this;
	},

	remove: function(item){
		for (var i = this.length; i--;) if (this[i] === item) this.splice(i, 1);
		return this;
	},

	empty: function(){
		this.length = 0;
		return this;
	}

});
Array.prototype.each = Array.prototype.forEach;
Array.each = Array.forEach;

function $each(iterable, fn, bind){
	((iterable && typeof iterable.length == 'number' && $type(iterable) != 'object') ? Array : Abstract).each(iterable, fn, bind);
};

String.extend({

	test: function(regex, params){
		return (($type(regex) == 'string') ? new RegExp(regex, params) : regex).test(this);
	},

	contains: function(string, separator){
		return (separator) ? (separator + this + separator).indexOf(separator + string + separator) > -1 : this.indexOf(string) > -1;
	},

	trim: function(){
		return this.replace(/^\s+|\s+$/g, '');
	},

	clean: function(){
		return this.replace(/\s{2,}/g, ' ').trim();
	},

	camelCase: function(){
		return this.replace(/-\D/g, function(match){
			return match.charAt(1).toUpperCase();
		});
	},

	hyphenate: function(){
		return this.replace(/[A-Z]/g, function(match){
			return ('-' + match.charAt(0).toLowerCase());
		});
	},

	capitalize: function(){
		return this.replace(/\b[a-z]/g, function(match){
			return match.toUpperCase();
		});
	},

	escapeRegExp: function(){
		return this.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1');
	},
	toInt: function(base){
		return parseInt(this, base || 10);
	},

	toFloat: function(){
		return parseFloat(this);
	},

	hexToRgb: function(array){
		var hex = this.match(/^#?(\w{1,2})(\w{1,2})(\w{1,2})$/);
		return (hex) ? hex.slice(1).hexToRgb(array) : false;
	},

	rgbToHex: function(array){
		var rgb = this.match(/\d{1,3}/g);
		return (rgb) ? rgb.rgbToHex(array) : false;
	}

});

Array.extend({

	hexToRgb: function(array){
		if (this.length != 3) return null;
		var rgb = [];
		for (var i = 0; i < 3; i++){
			rgb.push(((this[i].length == 1) ? this[i] + this[i] : this[i]).toInt(16));
		}
		return array ? rgb : 'rgb(' + rgb.join(',') + ')';
	},

	rgbToHex: function(array){
		if (this.length < 3) return null;
		if (this.length == 4 && this[3] == 0 && !array) return 'transparent';
		var hex = [];
		for (var i = 0; i < 3; i++){
			var bit = (this[i] - 0).toString(16);
			hex.push((bit.length == 1) ? '0' + bit : bit);
		}
		return array ? hex : '#' + hex.join('');
	}

});

Function.extend({

	extend: $extend,

	create: function(options){
		var self = this;
		options = options || {};
		return function(event){
			var args = $splat(options.arguments) || arguments;
			if (options.event) args = [event || window.event].extend(args);
			var returns = function(){
				return self.apply($pick(options.bind, self), args);
			};
			if (options.delay) return setTimeout(returns, options.delay);
			if (options.periodical) return setInterval(returns, options.periodical);
			if (options.attempt) return $try(returns);
			return returns();
		};
	},

	pass: function(args, bind){
		return this.create({'arguments': args, 'bind': bind});
	},

	attempt: function(args, bind){
		return this.create({'arguments': args, 'bind': bind, 'attempt': true})();
	},

	bind: function(bind, args, evt){
		return this.create({'bind': bind, 'arguments': args, 'event': evt});
	},

	delay: function(delay, bind, args){
		return this.create({'delay': delay, 'bind': bind, 'arguments': args})();
	},

	periodical: function(interval, bind, args){
		return this.create({'periodical': interval, 'bind': bind, 'arguments': args})();
	}

});

Function.empty = $empty;

Number.extend({

	limit: function(min, max){
		return Math.min(max, Math.max(min, this));
	},

	round: function(precision){
		precision = Math.pow(10, precision || 0);
		return Math.round(this * precision) / precision;
	},

	times: function(fn, bind){
		for (var i = 0; i < this; i++) fn.call(bind, i, this);
	},

	toFloat: function(){
		return parseFloat(this);
	},

	toInt: function(base){
		return parseInt(this, base || 10);
	}

});

var Element = function(el, props){

	if ($type(el) == 'string'){
		if (Client.Engine.ie && props && (props.name || props.type)){
			var name = (props.name) ? ' name="' + props.name + '"' : '';
			var type = (props.type) ? ' type="' + props.type + '"' : '';
			delete props.name;
			delete props.type;
			el = '<' + el + name + type + '>';
		}
		el = document.createElement(el);
	}
	el = $(el);
	return (!props || !el) ? el : el.set(props);
};

Element.prototype = HTMLElement.prototype;

var Elements = function(elements, nocheck){
	elements = elements || [];
	var l = elements.length;
	if (nocheck || !l) return $extend(elements, this);
	var uniques = {};
	var returned = [];
	for (var i = 0; i < l; i++){
		var el = $(elements[i]);
		if (!el || uniques[el.$attributes.uid]) continue;
		uniques[el.$attributes.uid] = true;
		returned.push(el);
	}
	return $extend(returned, this);
};

function $(el){
	if (!el) return null;
	if (el.htmlElement) return Garbage.collect(el);
	var type = $type(el);
	if (type == 'string'){
		el = document.getElementById(el);
		type = (el) ? 'element' : false;
	}
	if (type != 'element') return (['window', 'document'].contains(type)) ? el : null;
	if (el.htmlElement) return Garbage.collect(el);
	if (Element.$badTags.contains(el.tagName.toLowerCase())) return el;
	$extend(el, Element.prototype);
	el.htmlElement = $empty;
	return Garbage.collect(el);
};

document.getElementsBySelector = document.getElementsByTagName;

function $$(){
	var elements = [];
	for (var i = 0, j = arguments.length; i < j; i++){
		var selector = arguments[i];
		switch ($type(selector)){
			case 'element': elements.push(selector); break;
			case false: case null: break;
			case 'string': selector = document.getElementsBySelector(selector, true);
			default: elements.extend(selector);
		}
	}
	return new Elements(elements);
};

Element.extend = function(properties){
	for (var property in properties){
		Element.prototype[property] = properties[property];
		Element[property] = Native.generic(property);
		Elements.prototype[(Array.prototype[property]) ? property + 'Elements' : property] = Elements.$multiply(property);
	}
};

Client.expand = function(properties){
	Element.extend(properties);
	window.extend(properties);
	document.extend(properties);
};

Elements.extend = function(properties){
	for (var property in properties){
		Elements.prototype[property] = properties[property];
		Elements[property] = Native.generic(property);
	}
};

Elements.$multiply = function(property){
	return function(){
		var args = arguments;
		var items = [];
		var elements = true;
		this.each(function(element){
			var returns = element[property].apply(element, args);
			items.push(returns);
			if (elements) elements = ($type(returns) == 'element');
		});
		return (elements) ? new Elements(items) : items;
	};
};

Element.Setters = new Abstract({

	attributes: function(properties){
		this.setProperties(properties);
	}

});

Element.Setters.properties = Element.Setters.attributes;

Element.extend({

	getElement: function(tag){
		return $(this.getElementsByTagName(tag)[0] || null);
	},

	getElements: function(tag){
		return $$(this.getElementsByTagName(tag));
	},

	set: function(props){
		for (var prop in props){
			if (Element.Setters[prop]) Element.Setters[prop].call(this, props[prop]);
			else this.setProperty(prop, props[prop]);
		}
		return this;
	},

	inject: function(el, where){
		el = $(el);
		switch (where){
			case 'before': el.parentNode.insertBefore(this, el); break;
			case 'after':
				var next = el.getNext();
				if (!next) el.parentNode.appendChild(this);
				else el.parentNode.insertBefore(this, next);
				break;
			case 'top':
				var first = el.firstChild;
				if (first){
					el.insertBefore(this, first);
					break;
				}
			default: el.appendChild(this);
		}
		return this;
	},

	injectBefore: function(el){
		return this.inject(el, 'before');
	},

	injectAfter: function(el){
		return this.inject(el, 'after');
	},

	injectInside: function(el){
		return this.inject(el, 'bottom');
	},

	injectTop: function(el){
		return this.inject(el, 'top');
	},

	adopt: function(){
		var elements = [];
		$each(arguments, function(argument){
			elements = elements.concat(argument);
		});
		$$(elements).inject(this);
		return this;
	},

	remove: function(){
		return this.parentNode.removeChild(this);
	},

	clone: function(contents){
		var el = $(this.cloneNode(contents !== false));
		if (!el.$events) return el;
		el.$events = {};
		for (var type in this.$events) el.$events[type] = {
			'keys': $A(this.$events[type].keys),
			'values': $A(this.$events[type].values)
		};
		return el.removeEvents();
	},

	replaceWith: function(el){
		el = $(el);
		this.parentNode.replaceChild(el, this);
		return el;
	},

	appendText: function(text){
		this.appendChild(document.createTextNode(text));
		return this;
	},

	hasClass: function(className){
		return this.className.contains(className, ' ');
	},

	addClass: function(className){
		if (!this.hasClass(className)) this.className = (this.className + ' ' + className).clean();
		return this;
	},

	removeClass: function(className){
		this.className = this.className.replace(new RegExp('(^|\\s)' + className + '(?:\\s|$)'), '$1').clean();
		return this;
	},

	toggleClass: function(className){
		return this.hasClass(className) ? this.removeClass(className) : this.addClass(className);
	},

	walk: function(brother, start){
		brother += 'Sibling';
		var el = (start) ? this[start] : this[brother];
		while (el && $type(el) != 'element') el = el[brother];
		return $(el);
	},

	getPrevious: function(){
		return this.walk('previous');
	},

	getNext: function(){
		return this.walk('next');
	},

	getFirst: function(){
		return this.walk('next', 'firstChild');
	},

	getLast: function(){
		return this.walk('previous', 'lastChild');
	},

	getParent: function(){
		return $(this.parentNode);
	},

	getChildren: function(){
		return $$(this.childNodes);
	},

	hasChild: function(el){
		return !!$A(this.getElementsByTagName('*')).contains(el);
	},

	getProperty: function(property){
		var index = Element.$attributes[property];
		if (index) return this[index];
		var flag = Element.$attributesIFlag[property] || 0;
		if (!Client.Engine.ie || flag) return this.getAttribute(property, flag);
		var node = this.attributes[property];
		return (node) ? node.nodeValue : null;
	},

	removeProperty: function(property){
		var index = Element.$attributes[property];
		if (index) this[index] = '';
		else this.removeAttribute(property);
		return this;
	},

	getProperties: function(){
		var result = {};
		$each(arguments, function(key){
			result[key] = this.getProperty(key);
		}, this);
		return result;
	},

	setProperty: function(property, value){
		var index = Element.$attributes[property];
		if (index) this[index] = value;
		else this.setAttribute(property, value);
		return this;
	},

	setProperties: function(properties){
		for (var property in properties) this.setProperty(property, properties[property]);
		return this;
	},

	setHTML: function(){
		this.innerHTML = $A(arguments).join('');
		return this;
	},

	setText: function(text){
		var tag = this.getTag();
		if (['style', 'script'].contains(tag)){
			if (Client.Engine.ie){
				if (tag == 'style') this.styleSheet.cssText = text;
				else if (tag ==  'script') this.setProperty('text', text);
				return this;
			} else {
				if (this.firstChild) this.removeChild(this.firstChild);
				return this.appendText(text);
			}
		}
		this[$defined(this.innerText) ? 'innerText' : 'textContent'] = text;
		return this;
	},

	getText: function(){
		var tag = this.getTag();
		if (['style', 'script'].contains(tag)){
			if (Client.Engine.ie){
				if (tag == 'style') return this.styleSheet.cssText;
				else if (tag ==  'script') return this.getProperty('text');
			} else {
				return this.innerHTML;
			}
		}
		return ($pick(this.innerText, this.textContent));
	},

	getTag: function(){
		return this.tagName.toLowerCase();
	},

	empty: function(){
		Garbage.trash(this.getElementsByTagName('*'));
		return this.setHTML('');
	},

	destroy: function(){
		Garbage.kill(this.empty().remove());
		return null;
	}

});

Element.$badTags = ['object', 'embed'];

Element.$attributes = {
	'class': 'className', 'for': 'htmlFor', 'colspan': 'colSpan', 'rowspan': 'rowSpan',
	'accesskey': 'accessKey', 'tabindex': 'tabIndex', 'maxlength': 'maxLength',
	'readonly': 'readOnly', 'frameborder': 'frameBorder', 'value': 'value',
	'disabled': 'disabled', 'checked': 'checked', 'multiple': 'multiple', 'selected': 'selected'
};

Element.$attributesIFlag = {
	'href': 2, 'src': 2
};

Client.expand({

	addListener: function(type, fn){
		if (this.addEventListener) this.addEventListener(type, fn, false);
		else this.attachEvent('on' + type, fn);
		return this;
	},

	removeListener: function(type, fn){
		if (this.removeEventListener) this.removeEventListener(type, fn, false);
		else this.detachEvent('on' + type, fn);
		return this;
	}

});

Element.UID = 0;

var Garbage = {

	elements: {},

	collect: function(el){
		if (!el.$attributes){
			el.$attributes = {'opacity': 1, 'uid': Element.UID++};
			Garbage.elements[el.$attributes.uid] = el;
		}
		return el;
	},

	trash: function(elements){
		for (var i = elements.length, el; i--;){
			if (!(el = elements[i]) || !el.$attributes) continue;
			if (!el.tagName || Element.$badTags.contains(el.tagName.toLowerCase())) Garbage.kill(el);
		}
	},

	kill: function(el, unload){
		delete Garbage.elements[String(el.$attributes.uid)];
		if (el.$events) el.fireEvent('trash', unload).removeEvents();
		for (var p in el.$attributes) el.$attributes[p] = null;
		if (window.ie){
			for (var d in Element.prototype) el[d] = null;
		}
		el.htmlElement = el.$attributes = el = null;
	},

	empty: function(){
		Garbage.collect(window);
		Garbage.collect(document);
		for (var uid in Garbage.elements) Garbage.kill(Garbage.elements[uid], true);
	}

};

window.addListener('beforeunload', function(){
	window.addListener('unload', Garbage.empty);
	if (Client.Engine.ie) window.addListener('unload', CollectGarbage);
});

Element.Setters.styles = function(styles){
	this.setStyles(styles);
};

Element.extend({

	setStyle: function(property, value){
		switch (property){
			case 'opacity': return this.setOpacity(parseFloat(value));
			case 'float': property = (Client.Engine.ie) ? 'styleFloat' : 'cssFloat';
		}
		property = property.camelCase();
		if ($type(value) != 'string'){
			var map = (Element.Styles.All[property] || '@').split(' ');
			value = $splat(value).map(function(val, i){
				if (!map[i]) return '';
				return ($type(val) == 'number') ? map[i].replace('@', Math.round(val)) : val;
			}).join(' ');
		} else if (value == Number(value) + ''){
			value = Math.round(value);
		}
		this.style[property] = value;
		return this;
	},

	setStyles: function(styles){
		switch ($type(styles)){
			case 'object': for (var style in styles) this.setStyle(style, styles[style]); break;
			case 'string': this.style.cssText = styles;
		}
		return this;
	},

	setOpacity: function(opacity){
		if (opacity == 0){
			if (this.style.visibility != 'hidden') this.style.visibility = 'hidden';
		} else {
			if (this.style.visibility != 'visible') this.style.visibility = 'visible';
		}
		if (!this.currentStyle || !this.currentStyle.hasLayout) this.style.zoom = 1;
		if (Client.Engine.ie) this.style.filter = (opacity == 1) ? '' : 'alpha(opacity=' + opacity * 100 + ')';
		this.style.opacity = this.$attributes.opacity = opacity;
		return this;
	},

	getStyle: function(property){
		property = property.camelCase();
		if (property == 'opacity') return this.$attributes.opacity;
		var result = this.style[property];
		if (!$chk(result)){
			result = [];
			for (var style in Element.Styles.Short){
				if (property != style) continue;
				for (var s in Element.Styles.Short[style]) result.push(this.getStyle(s));
				return (result.every(function(item){
					return item == result[0];
				})) ? result[0] : result.join(' ');
			}
			if (document.defaultView) result = document.defaultView.getComputedStyle(this, null).getPropertyValue(property.hyphenate());
			else if (this.currentStyle) result = this.currentStyle[property];
		}
		if (result){
			result = String(result);
			var color = result.match(/rgba?\([\d\s,]+\)/);
			if (color) result = result.replace(color[0], color[0].rgbToHex());
		}
		return (Client.Engine.ie) ? Element.$fixStyle(property, result, this) : result;
	},

	getStyles: function(){
		var result = {};
		$each(arguments, function(key){
			result[key] = this.getStyle(key);
		}, this);
		return result;
	}

});

Element.$fixStyle = function(property, result, element){
	if ($chk(parseInt(result))) return result;
	if (['height', 'width'].contains(property)){
		var values = (property == 'width') ? ['left', 'right'] : ['top', 'bottom'];
		var size = 0;
		values.each(function(value){
			size += element.getStyle('border-' + value + '-width').toInt() + element.getStyle('padding-' + value).toInt();
		});
		return element['offset' + property.capitalize()] - size + 'px';
	} else if (property.test(/border(.+)Width|margin|padding/)){
		return '0px';
	}
	return result;
};

Element.Styles = {

	All: {
		'width': '@px', 'height': '@px', 'left': '@px', 'top': '@px', 'bottom': '@px', 'right': '@px',
		'backgroundColor': 'rgb(@, @, @)', 'backgroundPosition': '@px @px', 'color': 'rgb(@, @, @)',
		'fontSize': '@px', 'letterSpacing': '@px', 'lineHeight': '@px',
		'margin': '@px @px @px @px', 'padding': '@px @px @px @px', 'border': '@px @ rgb(@, @, @) @px @ rgb(@, @, @) @px @ rgb(@, @, @)',
		'borderWidth': '@px @px @px @px', 'borderStyle': '@ @ @ @', 'borderColor': 'rgb(@, @, @) rgb(@, @, @) rgb(@, @, @) rgb(@, @, @)',
		'zIndex' : '@', 'zoom': '@', 'fontWeight': '@',
		'textIndent': '@px', 'opacity': '@'
	},

	Short: {'margin': {}, 'padding': {}, 'border': {}, 'borderWidth': {}, 'borderStyle': {}, 'borderColor': {}}

};

['Top', 'Right', 'Bottom', 'Left'].each(function(direction){
	var Short = Element.Styles.Short;
	var All = Element.Styles.All;
	['margin', 'padding'].each(function(style){
		var sd = style + direction;
		Short[style][sd] = All[sd] = '@px';
	});
	var bd = 'border' + direction;
	Short.border[bd] = All[bd] = '@px @ rgb(@, @, @)';
	var bdw = bd + 'Width', bds = bd + 'Style', bdc = bd + 'Color';
	Short[bd] = {};
	Short.borderWidth[bdw] = Short[bd][bdw] = '@px';
	Short.borderStyle[bds] = Short[bd][bds] = '@';
	Short.borderColor[bdc] = Short[bd][bdc] = 'rgb(@, @, @)';
});

var Event = new Class({

	initialize: function(event){
		if (event && event.$extended) return event;
		this.$extended = true;
		event = event || window.event;
		this.event = event;
		this.type = event.type;
		this.target = event.target || event.srcElement;
		if (this.target.nodeType == 3) this.target = this.target.parentNode;

		this.shift = event.shiftKey;
		this.control = event.ctrlKey;
		this.alt = event.altKey;
		this.meta = event.metaKey;

		if (['DOMMouseScroll', 'mousewheel'].contains(this.type)){
			this.wheel = (event.wheelDelta) ? event.wheelDelta / 120 : -(event.detail || 0) / 3;
		} else if (this.type.contains('key')){
			this.code = event.which || event.keyCode;
			for (var name in Event.Keys){
				if (Event.Keys[name] == this.code){
					this.key = name;
					break;
				}
			}
			if (this.type == 'keydown'){
				var fKey = this.code - 111;
				if (fKey > 0 && fKey < 13) this.key = 'f' + fKey;
			}
			this.key = this.key || String.fromCharCode(this.code).toLowerCase();
		} else if (this.type.test(/(click|mouse|menu)/)){
			this.page = {
				'x': event.pageX || event.clientX + document.documentElement.scrollLeft,
				'y': event.pageY || event.clientY + document.documentElement.scrollTop
			};
			this.client = {
				'x': event.pageX ? event.pageX - window.pageXOffset : event.clientX,
				'y': event.pageY ? event.pageY - window.pageYOffset : event.clientY
			};
			this.rightClick = (event.which == 3) || (event.button == 2);
			switch (this.type){
				case 'mouseover': this.relatedTarget = event.relatedTarget || event.fromElement; break;
				case 'mouseout': this.relatedTarget = event.relatedTarget || event.toElement;
			}
			if (this.fixRelatedTarget.create({'bind': this, 'attempt': Client.Engine.gecko})() === false) this.relatedTarget = this.target;
		}
		return this;
	},

	stop: function(){
		return this.stopPropagation().preventDefault();
	},

	stopPropagation: function(){
		if (this.event.stopPropagation) this.event.stopPropagation();
		else this.event.cancelBubble = true;
		return this;
	},

	preventDefault: function(){
		if (this.event.preventDefault) this.event.preventDefault();
		else this.event.returnValue = false;
		return this;
	},

	fixRelatedTarget: function(){
		var rel = this.relatedTarget;
		if (rel && rel.nodeType == 3) this.relatedTarget = rel.parentNode;
	}

});

Event.Keys = new Abstract({
	'enter': 13,
	'up': 38,
	'down': 40,
	'left': 37,
	'right': 39,
	'esc': 27,
	'space': 32,
	'backspace': 8,
	'tab': 9,
	'delete': 46
});

Element.Setters.events = function(events){
	this.addEvents(events);
};

Client.expand({

	addEvent: function(type, fn){
		this.$events = this.$events || {};
		if (!this.$events[type]) this.$events[type] = {'keys': [], 'values': []};
		if (this.$events[type].keys.contains(fn)) return this;
		this.$events[type].keys.push(fn);
		var realType = type;
		var custom = Element.Events[type];
		var map = fn;
		if (custom){
			if (custom.add) custom.add.call(this, fn);
			if (custom.map){
				map = function(event){
					if (custom.map.call(this, event)) return fn.call(this, event);
					return false;
				};
			}
			if (custom.type) realType = custom.type;
		}
		var defn = fn;
		var nativeEvent = Element.$events[realType] || 0;
		if (nativeEvent){
			if (nativeEvent == 2){
				var self = this;
				defn = function(event){
					event = new Event(event);
					if (map.call(self, event) === false) event.stop();
				};
			}
			this.addListener(realType, defn);
		}
		this.$events[type].values.push(defn);
		return this;
	},

	removeEvent: function(type, fn){
		if (!this.$events || !this.$events[type]) return this;
		var pos = this.$events[type].keys.indexOf(fn);
		if (pos == -1) return this;
		var key = this.$events[type].keys.splice(pos, 1)[0];
		var value = this.$events[type].values.splice(pos, 1)[0];
		var custom = Element.Events[type];
		if (custom){
			if (custom.remove) custom.remove.call(this, fn);
			if (custom.type) type = custom.type;
		}
		return (Element.$events[type]) ? this.removeListener(type, value) : this;
	},

	addEvents: function(events){
		for (var event in events) this.addEvent(event, events[event]);
		return this;
	},

	removeEvents: function(type){
		if (!this.$events) return this;
		if (!type){
			for (var evType in this.$events) this.removeEvents(evType);
			this.$events = null;
		} else if (this.$events[type]){
			while (this.$events[type].keys[0]) this.removeEvent(type, this.$events[type].keys[0]);
			this.$events[type] = null;
		}
		return this;
	},

	fireEvent: function(type, args, delay){
		if (this.$events && this.$events[type]){
			this.$events[type].keys.each(function(fn){
				fn.create({'bind': this, 'delay': delay, 'arguments': args})();
			}, this);
		}
		return this;
	},

	cloneEvents: function(from, type){
		if (!from.$events) return this;
		if (!type){
			for (var evType in from.$events) this.cloneEvents(from, evType);
		} else if (from.$events[type]){
			from.$events[type].keys.each(function(fn){
				this.addEvent(type, fn);
			}, this);
		}
		return this;
	}

});

Element.$events = {
	'click': 2, 'dblclick': 2, 'mouseup': 2, 'mousedown': 2,
	'mousewheel': 2, 'DOMMouseScroll': 2,
	'mouseover': 2, 'mouseout': 2, 'mousemove': 2,
	'keydown': 2, 'keypress': 2, 'keyup': 2,
	'contextmenu': 2, 'submit': 2,
	'load': 1, 'unload': 1, 'beforeunload': 1, 'resize': 1, 'move': 1, 'DOMContentLoaded': 1, 'readystatechange': 1,
	'focus': 1, 'blur': 1, 'change': 1, 'reset': 1, 'select': 1,
	'error': 1, 'abort': 1, 'scroll': 1
};

Element.Events = new Abstract({

	'mouseenter': {
		type: 'mouseover',
		map: function(event){
			var related = event.relatedTarget;
			return (related && related != this && !this.hasChild(related));
		}
	},

	'mouseleave': {
		type: 'mouseout',
		map: function(event){
			var related = event.relatedTarget;
			return (related && related != this && !this.hasChild(related));
		}
	},

	'mousewheel': {
		type: (Client.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel'
	}

});

Elements.extend({

	filterByTag: function(tag, nocash){
		var elements = this.filter(function(el){
			return (Element.getTag(el) == tag);
		});
		return (nocash) ? elements : new Elements(elements, true);
	},

	filterByClass: function(className, nocash){
		var elements = this.filter(function(el){
			return (el.className && el.className.contains(className, ' '));
		});
		return (nocash) ? elements : new Elements(elements, true);
	},

	filterById: function(id, nocash){
		var elements = this.filter(function(el){
			return (el.id == id);
		});
		return (nocash) ? elements : new Elements(elements, true);
	},

	filterByAttribute: function(name, operator, value, nocash){
		var elements = this.filter(function(el){
			var current = Element.getProperty(el, name);
			if (!current) return false;
			if (!operator) return true;
			switch (operator){
				case '=': return (current == value);
				case '*=': return (current.contains(value));
				case '^=': return (current.substr(0, value.length) == value);
				case '$=': return (current.substr(current.length - value.length) == value);
				case '!=': return (current != value);
				case '~=': return current.contains(value, ' ');
				case '|=': return current.contains(value, '-');
			}
			return false;
		});
		return (nocash) ? elements : new Elements(elements, true);
	}

});

Element.extend({

	scrollTo: function(x, y){
		this.scrollLeft = x;
		this.scrollTop = y;
	},

	getSize: function(){
		return {
			'scroll': {'x': this.scrollLeft, 'y': this.scrollTop},
			'size': {'x': this.offsetWidth, 'y': this.offsetHeight},
			'scrollSize': {'x': this.scrollWidth, 'y': this.scrollHeight}
		};
	},

	getPosition: function(overflown){
		overflown = $splat(overflown) || [];
		var el = this, left = 0, top = 0;
		do {
			left += el.offsetLeft || 0;
			top += el.offsetTop || 0;
			el = el.offsetParent;
		} while (el);
		overflown.each(function(element){
			left -= element.scrollLeft || 0;
			top -= element.scrollTop || 0;
		});
		return {'x': left, 'y': top};
	},

	getTop: function(overflown){
		return this.getPosition(overflown).y;
	},

	getLeft: function(overflown){
		return this.getPosition(overflown).x;
	},

	getCoordinates: function(overflown){
		var position = this.getPosition(overflown);
		var obj = {
			'width': this.offsetWidth,
			'height': this.offsetHeight,
			'left': position.x,
			'top': position.y
		};
		obj.right = obj.left + obj.width;
		obj.bottom = obj.top + obj.height;
		return obj;
	}

});

Element.extend({

	getValue: function(){
		switch (this.getTag()){
			case 'select':
				var values = [];
				$each(this.options, function(option){
					if (option.selected) values.push($pick(option.value, option.text));
				});
				return (this.multiple) ? values : values[0];
			case 'input': if (!(this.checked && ['checkbox', 'radio'].contains(this.type)) && !['hidden', 'text', 'password'].contains(this.type)) break;
			case 'textarea': return this.value;
		}
		return false;
	},

	getFormElements: function(){
		return $$(this.getElementsByTagName('input'), this.getElementsByTagName('select'), this.getElementsByTagName('textarea'));
	},

	toQueryString: function(){
		var queryString = [];
		this.getFormElements().each(function(el){
			var name = el.name;
			var value = el.getValue();
			if (value === false || !name || el.disabled) return;
			var qs = function(val){
				queryString.push(name + '=' + encodeURIComponent(val));
			};
			if ($type(value) == 'array') value.each(qs);
			else qs(value);
		});
		return queryString.join('&');
	}

});

Element.$DOMMethods = {

	getElements: function(selector, nocash){
		var items = [];
		var separators = [];
		selector = selector.trim().replace(Selectors.sRegExp, function(match){
			if (match.charAt(2)) match = match.trim();
			separators.push(match.charAt(0));
			return '%' + match.charAt(1);
		}).split('%');
		for (var i = 0, j = selector.length; i < j; i++){
			var params = Selectors.$parse(selector[i]);
			if (!params) break;
			var temp = Selectors.Method.getParam(items, separators[i - 1] || false, this, params.tag, params.id, params.classes, params.attributes, params.pseudos);
			if (!temp) break;
			items = temp;
		}
		return Selectors.Method.getItems(items, this, nocash);
	},

	getElement: function(selector){
		return $(this.getElements(selector, true)[0] || null);
	},

	getElementsBySelector: function(selector, nocash){
		var elements = [];
		selector = selector.split(',');
		for (var i = 0, j = selector.length; i < j; i++) elements = elements.concat(this.getElements(selector[i], true));
		return (nocash) ? elements : new Elements(elements);
	}

};

Element.extend({

	getElementById: function(id){
		var el = document.getElementById(id);
		if (el){
			while ((el = el.parentNode)) if (el == this) return el;
		}
		return null;
	}

});

document.extend(Element.$DOMMethods);
Element.extend(Element.$DOMMethods);

var $E = document.getElement.bind(document);

var Selectors = {

	'regExp': /:[^:]+|\[[^\]]+\]|\.[\w-]+|#[\w-]+|\w+|\*/g,

	'aRegExp': /^(\w+)(?:([!*^$~|]?=)["']?([^"'\]]*)["']?)?$/,

	'sRegExp': /\s*([+>~\s])[a-zA-Z#.*\s]/g,

	'pRegExp': /^([\w-]+)(?:\((.*)\))?$/

};

Selectors.$parse = function(selector){
	var params = {tag: '*', id: null, classes: [], attributes: [], pseudos: []};
	selector = selector.replace(Selectors.regExp, function(bit) {
		switch (bit.charAt(0)){
			case '.': params.classes.push(bit.slice(1)); break;
			case '#': params.id = bit.slice(1); break;
			case '[': if ((bit = bit.slice(1, bit.length - 1).match(Selectors.aRegExp))) params.attributes.push(bit); break;
			case ':': if ((bit = Selectors.Pseudo.$parse(bit.slice(1)))) params.pseudos.push(bit); break;
			default: params.tag = bit;
		}
		return '';
	});
	return params;
};

Selectors.Pseudo = new Abstract({

	$parse: function(pseudo){
		if (!(pseudo = pseudo.match(Selectors.pRegExp))) return false;
		var name = pseudo[1].split('-')[0];
		var xparser = Selectors.Pseudo[name];
		var params = {'name': name, 'parser': xparser, 'argument': pseudo[2] || false};
		if (xparser && xparser.parser) params.argument = (xparser.parser.apply) ? xparser.parser(params.argument) : xparser.parser;
		return params;
	}

});

Selectors.XPath = {

	getParam: function(items, separator, context, tag, id, classNames, attributes, pseudos){
		var temp = context.namespaceURI ? 'xhtml:' : '';
		switch (separator){
			case '~': case '+': temp += '/following-sibling::'; break;
			case '>': temp += '/'; break;
			case ' ': temp += '//';
		}
		temp += tag;
		if (separator == '+') temp += '[1]';
		var i;
		for (i = pseudos.length; i--; i){
			var pseudo = pseudos[i];
			if (pseudo.parser && pseudo.parser.xpath) temp += pseudo.parser.xpath(pseudo.argument);
			else temp += ($chk(pseudo.argument)) ? '[@' + pseudo.name + '="' + pseudo.argument + '"]' : '[@' + pseudo.name + ']';
		}
		if (id) temp += '[@id="' + id + '"]';
		for (i = classNames.length; i--; i) temp += '[contains(concat(" ", @class, " "), " ' + classNames[i] + ' ")]';
		for (i = attributes.length; i--; i){
			var attribute = attributes[i];
			if (attribute[2] && attribute[3]){
				switch (attribute[2]){
					case '=': temp += '[@' + attribute[1] + '="' + attribute[3] + '"]'; break;
					case '*=': temp += '[contains(@' + attribute[1] + ', "' + attribute[3] + '")]'; break;
					case '^=': temp += '[starts-with(@' + attribute[1] + ', "' + attribute[3] + '")]'; break;
					case '$=': temp += '[substring(@' + attribute[1] + ', string-length(@' + attribute[1] + ') - ' + attribute[3].length + ' + 1) = "' + attribute[3] + '"]'; break;
					case '!=': temp += '[@' + attribute[1] + '!="' + attribute[3] + '"]'; break;
					case '~=': temp += '[contains(concat(" ", @' + attribute[1] + ', " "), " ' + attribute[3] + ' ")]'; break;
					case '|=': temp += '[contains(concat("-", @' + attribute[1] + ', "-"), "-' + attribute[3] + '-")]';
				}
			} else {
				temp += '[@' + attribute[1] + ']';
			}
		}
		items.push(temp);
		return items;
	},

	getItems: function(items, context, nocash){
		var elements = [];
		var xpath = document.evaluate('.//' + items.join(''), context, Selectors.XPath.resolver, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
		for (var i = 0, j = xpath.snapshotLength; i < j; i++) elements[i] = (nocash) ? xpath.snapshotItem(i) : $(xpath.snapshotItem(i));
		return (nocash) ? elements : new Elements(elements, true);
	},

	resolver: function(prefix){
		return (prefix == 'xhtml') ? 'http://www.w3.org/1999/xhtml' : false;
	}

};

Selectors.Filter = {

	getParam: function(items, separator, context, tag, id, classNames, attributes, pseudos){
		if (separator){
			switch (separator){
				case ' ': items = Selectors.Filter.getNestedByTag(items, tag); break;
				case '>': items = Selectors.Filter.getChildrenByTag(items, tag); break;
				case '+': items = Selectors.Filter.getFollowingByTag(items, tag); break;
				case '~': items = Selectors.Filter.getFollowingByTag(items, tag, true);
			}
			if (id) items = Elements.filterById(items, id, true);
		} else {
			if (id){
				var el = context.getElementById(id);
				if (!el || ((tag != '*') && (el.tagName.toLowerCase() != tag))) return false;
				items = [el];
			} else {
				items = $A(context.getElementsByTagName(tag));
			}
		}
		var i;
		for (i = classNames.length; i--; i) items = Elements.filterByClass(items, classNames[i], true);
		for (i = attributes.length; i--; i){
			var attribute = attributes[i];
			items = Elements.filterByAttribute(items, attribute[1], attribute[2], attribute[3], true);
		}
		for (i = pseudos.length; i--; i){
			var pseudo = pseudos[i];
			if (pseudo.parser && pseudo.parser.filter){
				var temp = {}, xparser = pseudo.parser, argument = pseudo.argument;
				items = items.filter(function(el, i, array){
					return xparser.filter(el, argument, i, array, temp);
				});
				temp = null;
			} else {
				items = Elements.filterByAttribute(items, pseudo.name, ($chk(pseudo.argument)) ? '=' : false, pseudo.argument, true);
			}
		}
		return items;
	},

	getItems: function(items, context, nocash){
		return (nocash) ? items : new Elements(items);
	},

	hasTag: function(el, tag){
		return (el.nodeName && el.nodeType == 1 && (tag == '*' || el.tagName.toLowerCase() == tag));
	},

	getFollowingByTag: function(context, tag, all){
		var found = [];
		for (var i = 0, j = context.length, next; i < j; i++){
			var next = context[i].nextSibling;
			while (next){
				if (Selectors.Filter.hasTag(next, tag)){
					found.push(next);
					if (!all) break;
				}
				next = next.nextSibling;
			}
		}
		return found;
	},

	getChildrenByTag: function(context, tag){
		var found = [];
		for (var i = 0, j = context.length; i < j; i++){
			var children = context[i].childNodes;
			for (var k = 0, l = children.length; k < l; k++){
				if (Selectors.Filter.hasTag(children[k], tag)) found.push(children[k]);
			}
		}
		return found;
	},

	getNestedByTag: function(context, tag){
		var found = [];
		for (var i = 0, j = context.length; i < j; i++) found.extend(context[i].getElementsByTagName(tag));
		return found;
	}

};

Selectors.Method = (Client.Features.xpath) ? Selectors.XPath : Selectors.Filter;

Selectors.Pseudo.enabled = {

	xpath: function(){
		return '[not(@disabled)]';
	},

	filter: function(el){
		return !(el.disabled);
	}
};

Selectors.Pseudo.empty = {

	xpath: function(){
		return '[not(node())]';
	},

	filter: function(el){
		return !(el.innerText || el.textContent || '').length;
	}

};

Selectors.Pseudo.contains = {

	xpath: function(argument){
		return '[contains(text(), "' + argument + '")]';
	},

	filter: function(el, argument){
		for (var i = el.childNodes.length; i--;){
			var child = el.childNodes[i];
			if (child.nodeName && child.nodeType == 3 && child.nodeValue.contains(argument)) return true;
		}
		return false;
	}

};

Selectors.Pseudo.nth = {

	parser: function(argument){
		argument = (argument) ? argument.match(/^([+-]?\d*)?([nodev]+)?([+-]?\d*)?$/) : [null, 1, 'n', 0];
		if (!argument) return false;
		var inta = parseInt(argument[1]);
		var a = ($chk(inta)) ? inta : 1;
		var special = argument[2] || false;
		var b = parseInt(argument[3]) || 0;
		b = b - 1;
		while (b < 1) b += a;
		while (b >= a) b -= a;
		switch (special){
			case 'n': return {'a': a, 'b': b, 'special': 'n'};
			case 'odd': return {'a': 2, 'b': 0, 'special': 'n'};
			case 'even': return {'a': 2, 'b': 1, 'special': 'n'};
			case 'first': return {'a': 0, 'special': 'index'};
			case 'last': return {'special': 'last'};
			case 'only': return {'special': 'only'};
			default: return {'a': (a - 1), 'special': 'index'};
		}
	},

	xpath: function(argument){
		switch (argument.special){
			case 'n': return '[count(preceding-sibling::*) mod ' + argument.a + ' = ' + argument.b + ']';
			case 'last': return '[count(following-sibling::*) = 0]';
			case 'only': return '[not(preceding-sibling::* or following-sibling::*)]';
			default: return '[count(preceding-sibling::*) = ' + argument.a + ']';
		}
	},

	filter: function(el, argument, i, all, temp){
		if (i == 0) temp.parents = [];
		var parent = el.parentNode;
		if (!parent.$children){
			temp.parents.push(parent);
			parent.$children = parent.$children || Array.filter(parent.childNodes, function(child){
				return (child.nodeName && child.nodeType == 1);
			});
		}
		var include = false;
		switch (argument.special){
			case 'n': if (parent.$children.indexOf(el) % argument.a == argument.b) include = true; break;
			case 'last': if (parent.$children.getLast() == el) include = true; break;
			case 'only': if (parent.$children.length == 1) include = true; break;
			case 'index': if (parent.$children[argument.a] == el) include = true;
		}
		if (i == all.length - 1){
			for (var j = temp.parents.length; j--;){
				temp.parents[j].$children = null;
				if (Client.Engine.ie) temp.parents[j].removeAttribute('$children');
			}
		}
		return include;
	}

};

Selectors.Pseudo.extend({

	'even': {
		'parser': {'a': 2, 'b': 1, 'special': 'n'},
		'xpath': Selectors.Pseudo.nth.xpath,
		'filter': Selectors.Pseudo.nth.filter
	},

	'odd': {
		'parser': {'a': 2, 'b': 0, 'special': 'n'},
		'xpath': Selectors.Pseudo.nth.xpath,
		'filter': Selectors.Pseudo.nth.filter
	},

	'first': {
		'parser': {'a': 0, 'special': 'index'},
		'xpath': Selectors.Pseudo.nth.xpath,
		'filter': Selectors.Pseudo.nth.filter
	},

	'last': {
		'parser': {'special': 'last'},
		'xpath': Selectors.Pseudo.nth.xpath,
		'filter': Selectors.Pseudo.nth.filter
	},

	'only': {
		'parser': {'special': 'only'},
		'xpath': Selectors.Pseudo.nth.xpath,
		'filter': Selectors.Pseudo.nth.filter
	}

});

Element.Events.domready = {

	add: function(fn){
		if (Client.loaded){
			fn.call(this);
			return this;
		}
		var self = this;
		var domReady = function(){
			if (!arguments.callee.done){
				arguments.callee.done = true;
				fn.call(self);
			};
			return true;
		};
		var check = function(context){
			if ((Client.Engine.webkit ? ['loaded', 'complete'] : 'complete').contains(context.readyState)) return domReady();
			return false;
		};
		if (document.readyState && Client.Engine.webkit){
			(function(){
				if (!check(document)) arguments.callee.delay(50);
			})();
		} else if (document.readyState && Client.Engine.ie){
			var script = $('ie_domready');
			if (!script){
				var src = (window.location.protocol == 'https:') ? '//:' : 'javascript:void(0)';
				document.write('<script id="ie_domready" defer src="' + src + '"><\/script>');
				script = $('ie_domready');
			}
			if (!check(script)) script.addEvent('readystatechange', check.pass(script));
		} else {
			window.addEvent('load', domReady);
			document.addEvent('DOMContentLoaded', domReady);
		}
		return this;
	}

};

window.addEvent('domready', function(){
	Client.loaded = true;
});

Client.extend({

	getWidth: function(){
		if (Client.Engine.webkit419) return window.innerWidth;
		if (Client.Engine.opera) return document.body.clientWidth;
		return document.documentElement.clientWidth;
	},

	getHeight: function(){
		if (Client.Engine.webkit419) return window.innerHeight;
		if (Client.Engine.opera) return document.body.clientHeight;
		return document.documentElement.clientHeight;
	},

	getScrollWidth: function(){
		if (Client.Engine.ie) return Math.max(document.documentElement.offsetWidth, document.documentElement.scrollWidth);
		if (Client.Engine.webkit) return document.body.scrollWidth;
		return document.documentElement.scrollWidth;
	},

	getScrollHeight: function(){
		if (Client.Engine.ie) return Math.max(document.documentElement.offsetHeight, document.documentElement.scrollHeight);
		if (Client.Engine.webkit) return document.body.scrollHeight;
		return document.documentElement.scrollHeight;
	},

	getScrollLeft: function(){
		return window.pageXOffset || document.documentElement.scrollLeft;
	},

	getScrollTop: function(){
		return window.pageYOffset || document.documentElement.scrollTop;
	},

	getSize: function(){
		return {
			'size': {'x': Client.getWidth(), 'y': Client.getHeight()},
			'scrollSize': {'x': Client.getScrollWidth(), 'y': Client.getScrollHeight()},
			'scroll': {'x': Client.getScrollLeft(), 'y': Client.getScrollTop()}
		};
	}

});

window.extend({

	getSize: Client.getSize,

	getPosition: function(){
		return {'x': 0, 'y': 0};
	}

});

var Fx = new Class({

	Implements: [Chain, Events, Options],

	options: {
		transition: function(p){
			return -(Math.cos(Math.PI * p) - 1) / 2;
		},
		duration: 500,
		unit: false,
		wait: true,
		fps: 50
	},

	initialize: function(){
		var params = $A(arguments).associate({'options': 'object', 'element': true});
		this.element = this.element || params.element;
		this.setOptions(params.options);
	},

	step: function(){
		var time = $time();
		if (time < this.time + this.options.duration){
			this.delta = this.options.transition((time - this.time) / this.options.duration);
			this.setNow();
			this.increase();
		} else {
			this.stop(true);
			this.now = this.to;
			this.increase();
			this.fireEvent('onComplete', this.element, 10);
			this.callChain();
		}
	},

	set: function(to){
		this.now = to;
		this.increase();
		this.fireEvent('onSet', this.element);
		return this;
	},

	setNow: function(){
		this.now = this.compute(this.from, this.to);
	},

	compute: function(from, to){
		return (to - from) * this.delta + from;
	},

	start: function(from, to){
		if (!this.options.wait) this.stop();
		else if (this.timer) return this;
		this.from = from;
		this.to = to;
		this.change = this.to - this.from;
		this.time = $time();
		this.timer = this.step.periodical(Math.round(1000 / this.options.fps), this);
		this.fireEvent('onStart', this.element);
		return this;
	},

	stop: function(end){
		if (!this.timer) return this;
		this.timer = $clear(this.timer);
		if (!end) this.fireEvent('onCancel', this.element);
		return this;
	}

});

Fx.CSS = {

	prepare: function(element, property, values){
		values = $splat(values);
		var values1 = values[1];
		if (!$chk(values1)){
			values[1] = values[0];
			values[0] = element.getStyle(property);
		}
		var parsed = values.map(Fx.CSS.set);
		return {'from': parsed[0], 'to': parsed[1]};
	},

	set: function(value){
		value = ($type(value) == 'string') ? value.split(' ') : $splat(value);
		return value.map(function(val){
			val = String(val);
			var found = false;
			Fx.CSS.Parsers.each(function(parser, key){
				if (!found){
					var match = parser.match(val);
					if ($chk(match)) found = {'value': match, 'parser': parser};
				}
			});
			return found || {'value': val, parser: {
				compute: function(from, to){
					return to;
				}
			}};
		});
	},

	compute: function(from, to, fx){
		return from.map(function(obj, i){
			return {'value': obj.parser.compute(obj.value, to[i].value, fx), 'parser': obj.parser};
		});
	},

	serve: function(now, unit){
		return now.reduce(function(prev, cur){
			var serve = cur.parser.serve;
			return prev.concat((serve) ? serve(cur.value, unit) : cur.value);
		}, []);
	}

};

Fx.CSS.Parsers = new Abstract({

	'color': {

		match: function(value){
			if (value.match(/^#[0-9a-f]{3,6}$/i)) return value.hexToRgb(true);
			return ((value = value.match(/(\d+),\s*(\d+),\s*(\d+)/))) ? [value[1], value[2], value[3]] : false;
		},

		compute: function(from, to, fx){
			return from.map(function(value, i){
				return Math.round(fx.compute(value, to[i]));
			});
		},

		serve: function(value){
			return value.map(Number);
		}

	},

	'number': {

		match: function(value){
			return parseFloat(value);
		},

		compute: function(from, to, fx){
			return fx.compute(from, to);
		},

		serve: function(value, unit){
			return (unit) ? value + unit : value;
		}

	}

});

Fx.Elements = new Class({

	Extends: Fx,

	initialize: function(elements, options){
		this.parent(elements, options);
		this.elements = $$(this.element);
	},

	setNow: function(){
		for (var i in this.from){
			var iFrom = this.from[i], iTo = this.to[i], iNow = this.now[i] = {};
			for (var p in iFrom) iNow[p] = Fx.CSS.compute(iFrom[p], iTo[p], this);
		}
	},

	set: function(to){
		var parsed = {};
		this.css = {};
		for (var i in to){
			var iTo = to[i], iParsed = parsed[i] = {};
			for (var p in iTo) iParsed[p] = Fx.CSS.set(iTo[p]);
		}
		return this.parent(parsed);
	},

	start: function(obj){
		if (this.timer && this.options.wait) return this;
		this.now = {};
		this.css = {};
		var from = {}, to = {};
		for (var i in obj){
			var iProps = obj[i], iFrom = from[i] = {}, iTo = to[i] = {};
			for (var p in iProps){
				var parsed = Fx.CSS.prepare(this.elements[i], p, iProps[p]);
				iFrom[p] = parsed.from;
				iTo[p] = parsed.to;
			}
		}
		return this.parent(from, to);
	},

	increase: function(){
		for (var i in this.now){
			var iNow = this.now[i];
			for (var p in iNow) this.elements[i].setStyle(p, Fx.CSS.serve(iNow[p], this.options.unit));
		}
	}

});

Fx.Style = new Class({

	Extends: Fx,

	initialize: function(element, property, options){
		this.parent($(element), options);
		this.property = property;
	},

	hide: function(){
		return this.set(0);
	},

	setNow: function(){
		this.now = Fx.CSS.compute(this.from, this.to, this);
	},

	set: function(to){
		return this.parent(Fx.CSS.set(to));
	},

	start: function(from, to){
		if (this.timer && this.options.wait) return this;
		var parsed = Fx.CSS.prepare(this.element, this.property, [from, to]);
		return this.parent(parsed.from, parsed.to);
	},

	increase: function(){
		this.element.setStyle(this.property, Fx.CSS.serve(this.now, this.options.unit));
	}

});

Element.extend({

	effect: function(property, options){
		return new Fx.Style(this, property, options);
	}

});

Fx.Styles = new Class({

	Extends: Fx,

	initialize: function(element, options){
		this.parent($(element), options);
	},

	setNow: function(){
		for (var p in this.from) this.now[p] = Fx.CSS.compute(this.from[p], this.to[p], this);
	},

	set: function(to){
		var parsed = {};
		for (var p in to) parsed[p] = Fx.CSS.set(to[p]);
		return this.parent(parsed);
	},

	start: function(obj){
		if (this.timer && this.options.wait) return this;
		this.now = {};
		var from = {}, to = {};
		for (var p in obj){
			var parsed = Fx.CSS.prepare(this.element, p, obj[p]);
			from[p] = parsed.from;
			to[p] = parsed.to;
		}
		return this.parent(from, to);
	},

	increase: function(){
		for (var p in this.now) this.element.setStyle(p, Fx.CSS.serve(this.now[p], this.options.unit));
	}

});

Element.extend({

	effects: function(options){
		return new Fx.Styles(this, options);
	}

});

Fx.Scroll = new Class({

	Extends: Fx,

	options: {
		overflown: [],
		offset: {'x': 0, 'y': 0},
		wheelStops: true
	},

	initialize: function(element, options){
		this.parent($(element), options);
		this.now = [];
		this.bound = {'stop': this.stop.bind(this, false)};
		if (this.options.wheelStops){
			this.addEvent('onStart', function(){
				document.addEvent('mousewheel', this.bound.stop);
			}.bind(this), true);
			this.addEvent('onComplete', function(){
				document.removeEvent('mousewheel', this.bound.stop);
			}.bind(this), true);
		}
	},

	setNow: function(){
		for (var i = 2; i--;) this.now[i] = this.compute(this.from[i], this.to[i]);
	},

	scrollTo: function(x, y){
		if (this.timer && this.options.wait) return this;
		var el = this.element.getSize();
		var values = {'x': x, 'y': y};
		for (var z in el.size){
			var max = el.scrollSize[z] - el.size[z];
			if ($chk(values[z])) values[z] = ($type(values[z]) == 'number') ? values[z].limit(0, max) : max;
			else values[z] = el.scroll[z];
			values[z] += this.options.offset[z];
		}
		return this.start([el.scroll.x, el.scroll.y], [values.x, values.y]);
	},

	toTop: function(){
		return this.scrollTo(false, 0);
	},

	toBottom: function(){
		return this.scrollTo(false, 'full');
	},

	toLeft: function(){
		return this.scrollTo(0, false);
	},

	toRight: function(){
		return this.scrollTo('full', false);
	},

	toElement: function(el){
		var parent = this.element.getPosition(this.options.overflown);
		var target = $(el).getPosition(this.options.overflown);
		return this.scrollTo(target.x - parent.x, target.y - parent.y);
	},

	increase: function(){
		this.element.scrollTo(this.now[0], this.now[1]);
	}

});

Fx.Slide = new Class({

	Extends: Fx,

	options: {
		mode: 'vertical'
	},

	initialize: function(element, options){
		this.parent($(element), options);
		this.wrapper = new Element('div', {'styles': $extend(this.element.getStyles('margin'), {'overflow': 'hidden'})}).injectAfter(this.element).adopt(this.element);
		this.element.setStyle('margin', 0);
		this.now = [];
		this.open = true;
		this.addEvent('onComplete', function(){
			this.open = (this.now[0] === 0);
			if (this.open){
				this.wrapper.setStyle(this.layout, '');
				if (Client.Engine.webkit419) this.element.remove().inject(this.wrapper);
			}
		}, true);
	},

	setNow: function(){
		for (var i = 2; i--;) this.now[i] = this.compute(this.from[i], this.to[i]);
	},

	vertical: function(){
		this.margin = 'margin-top';
		this.layout = 'height';
		this.offset = this.element.offsetHeight;
	},

	horizontal: function(){
		this.margin = 'margin-left';
		this.layout = 'width';
		this.offset = this.element.offsetWidth;
	},

	slideIn: function(mode){
		this[mode || this.options.mode]();
		return this.start([this.element.getStyle(this.margin).toInt(), this.wrapper.getStyle(this.layout).toInt()], [0, this.offset]);
	},

	slideOut: function(mode){
		this[mode || this.options.mode]();
		return this.start([this.element.getStyle(this.margin).toInt(), this.wrapper.getStyle(this.layout).toInt()], [-this.offset, 0]);
	},

	hide: function(mode){
		this[mode || this.options.mode]();
		this.open = false;
		return this.set([-this.offset, 0]);
	},

	show: function(mode){
		this[mode || this.options.mode]();
		this.open = true;
		return this.set([0, this.offset]);
	},

	toggle: function(mode){
		if (this.wrapper.offsetHeight == 0 || this.wrapper.offsetWidth == 0) return this.slideIn(mode);
		return this.slideOut(mode);
	},

	increase: function(){
		this.element.setStyle(this.margin, this.now[0] + this.options.unit);
		this.wrapper.setStyle(this.layout, this.now[1] + this.options.unit);
	}

});

Fx.Slide.Accessory = {'slideIn': 'slideIn', 'slideOut': 'slideOut', 'slideToggle': 'toggle', 'slideHide': 'hide', 'slideShow': 'show'};

$each(Fx.Slide.Accessory, function(method, accessory){
	Fx.Slide.Accessory[accessory] = function(options){
		var slide = this.$attributes.slide;
		if (!slide){
			slide = new Fx.Slide(this, {wait: false});
			this.$attributes.slide = slide.wrapper.$attributes.slide = slide;
		}
		if (options) slide.setOptions(options);
		return slide[method]();
	};
});
Element.extend(Fx.Slide.Accessory);

Fx.Transition = function(transition, params){
	params = $splat(params) || [];
	return $extend(transition, {
		easeIn: function(pos){
			return transition(pos, params);
		},
		easeOut: function(pos){
			return 1 - transition(1 - pos, params);
		},
		easeInOut: function(pos){
			return (pos <= 0.5) ? transition(2 * pos, params) / 2 : (2 - transition(2 * (1 - pos), params)) / 2;
		}
	});
};

Fx.Transitions = new Abstract({

	linear: function(p){
		return p;
	}

});

Fx.Transitions.extend = function(transitions){
	for (var transition in transitions) Fx.Transitions[transition] = new Fx.Transition(transitions[transition]);
};

Fx.Transitions.extend({

	Pow: function(p, x){
		return Math.pow(p, x[0] || 6);
	},

	Expo: function(p){
		return Math.pow(2, 8 * (p - 1));
	},

	Circ: function(p){
		return 1 - Math.sin(Math.acos(p));
	},

	Sine: function(p){
		return 1 - Math.sin((1 - p) * Math.PI / 2);
	},

	Back: function(p, x){
		x = x[0] || 1.618;
		return Math.pow(p, 2) * ((x + 1) * p - x);
	},

	Bounce: function(p){
		var value;
		for (var a = 0, b = 1; 1; a += b, b /= 2){
			if (p >= (7 - 4 * a) / 11){
				value = - Math.pow((11 - 6 * a - 11 * p) / 4, 2) + b * b;
				break;
			}
		}
		return value;
	},

	Elastic: function(p, x){
		return Math.pow(2, 10 * --p) * Math.cos(20 * p * Math.PI * (x[0] || 1) / 3);
	}

});

['Quad', 'Cubic', 'Quart', 'Quint'].each(function(transition, i){
	Fx.Transitions[transition] = new Fx.Transition(function(p){
		return Math.pow(p, [i + 2]);
	});
});

var Drag = new Class({

	Implements: [Events, Options],

	options: {
		handle: false,
		unit: 'px',
		limit: false,
		modifiers: {x: 'left', y: 'top'},
		grid: false,
		snap: 6
	},

	initialize: function(){
		var params = $A(arguments).associate({'options': 'object', 'element': ['element', 'string']});
		this.element = $(params.element);
		this.setOptions(params.options);
		this.handle = $(this.options.handle) || this.element;
		this.mouse = {'now': {}, 'pos': {}};
		this.value = {'start': {}, 'now': {}};
		this.bound = {
			'start': this.start.bind(this),
			'check': this.check.bind(this),
			'drag': this.drag.bind(this),
			'stop': this.stop.bind(this)
		};
		this.attach();
	},

	attach: function(){
		this.handle.addEvent('mousedown', this.bound.start);
		return this;
	},

	detach: function(){
		this.handle.removeEvent('mousedown', this.bound.start);
		return this;
	},

	start: function(event){
		this.fireEvent('onBeforeStart', this.element);
		this.mouse.start = event.page;
		var limit = this.options.limit;
		this.limit = {'x': [], 'y': []};
		for (var z in this.options.modifiers){
			if (!this.options.modifiers[z]) continue;
			this.value.now[z] = this.element.getStyle(this.options.modifiers[z]).toInt();
			this.mouse.pos[z] = event.page[z] - this.value.now[z];
			if (limit && limit[z]){
				for (var i = 2; i--;){
					if ($chk(limit[z][i])) this.limit[z][i] = ($type(limit[z][i]) == 'function') ? limit[z][i]() : limit[z][i];
				}
			}
		}
		if ($type(this.options.grid) == 'number') this.options.grid = {'x': this.options.grid, 'y': this.options.grid};
		document.addEvents({
			'mousemove': this.bound.check,
			'mouseup': this.bound.stop
		});
		this.fireEvent('onStart', this.element);
		event.stop();
	},

	check: function(event){
		var distance = Math.round(Math.sqrt(Math.pow(event.page.x - this.mouse.start.x, 2) + Math.pow(event.page.y - this.mouse.start.y, 2)));
		if (distance > this.options.snap){
			document.removeEvent('mousemove', this.bound.check);
			document.addEvent('mousemove', this.bound.drag);
			this.drag(event);
			this.fireEvent('onSnap', this.element);
		}
		event.stop();
	},

	drag: function(event){
		this.out = false;
		this.mouse.now = event.page;
		for (var z in this.options.modifiers){
			if (!this.options.modifiers[z]) continue;
			this.value.now[z] = this.mouse.now[z] - this.mouse.pos[z];
			if (this.limit[z]){
				if ($chk(this.limit[z][1]) && (this.value.now[z] > this.limit[z][1])){
					this.value.now[z] = this.limit[z][1];
					this.out = true;
				} else if ($chk(this.limit[z][0]) && (this.value.now[z] < this.limit[z][0])){
					this.value.now[z] = this.limit[z][0];
					this.out = true;
				}
			}
			if (this.options.grid[z]) this.value.now[z] -= (this.value.now[z] % this.options.grid[z]);
			this.element.setStyle(this.options.modifiers[z], this.value.now[z] + this.options.unit);
		}
		this.fireEvent('onDrag', this.element);
		event.stop();
	},

	stop: function(){
		document.removeEvent('mousemove', this.bound.check);
		document.removeEvent('mousemove', this.bound.drag);
		document.removeEvent('mouseup', this.bound.stop);
		this.fireEvent('onComplete', this.element);
	}

});

Element.extend({

	makeResizable: function(options){
		return new Drag(this, $merge({modifiers: {x: 'width', y: 'height'}}, options));
	}

});

Drag.Move = new Class({

	Extends: Drag,

	options: {
		droppables: [],
		container: false,
		overflown: []
	},

	initialize: function(element, options){
		this.parent(element, options);
		this.droppables = $$(this.options.droppables);
		this.container = $(this.options.container);
		this.positions = ['relative', 'absolute', 'fixed'];
		this.position = {'element': this.element.getStyle('position'), 'container': false};
		if (this.container) this.position.container = this.container.getStyle('position');
		if (!this.positions.contains(this.position.element)) this.position.element = 'absolute';
		var top = this.element.getStyle('top').toInt();
		var left = this.element.getStyle('left').toInt();
		if (this.position.element == 'absolute' && !this.positions.contains(this.position.container)){
			top = $chk(top) ? top : this.element.getTop(this.options.overflown);
			left = $chk(left) ? left : this.element.getLeft(this.options.overflown);
		} else {
			top = $chk(top) ? top : 0;
			left = $chk(left) ? left : 0;
		}
		this.element.setStyles({'top': top, 'left': left, 'position': this.position.element});
	},

	start: function(event){
		if (this.overed){
			this.overed.fireEvent('leave', [this.element, this]);
			this.overed = null;
		}
		if (this.container){
			var cont = this.container.getCoordinates();
			var el = this.element.getCoordinates();
			if (this.position.element == 'absolute' && !this.positions.contains(this.position.container)){
				this.options.limit = {
					'x': [cont.left, cont.right - el.width],
					'y': [cont.top, cont.bottom - el.height]
				};
			} else {
				this.options.limit = {
					'y': [0, cont.height - el.height],
					'x': [0, cont.width - el.width]
				};
			}
		}
		this.parent(event);
	},

	drag: function(event){
		this.parent(event);
		if (this.droppables.length) this.checkDroppables();
	},

	checkDroppables: function(){
		var overed = this.out ? false : this.droppables.filter(this.checkAgainst, this).getLast();
		if (this.overed != overed){
			if (this.overed) this.overed.fireEvent('leave', [this.element, this]);
			this.overed = overed ? overed.fireEvent('over', [this.element, this]) : null;
		}
	},

	checkAgainst: function(el){
		el = el.getCoordinates(this.options.overflown);
		var now = this.mouse.now;
		return (now.x > el.left && now.x < el.right && now.y < el.bottom && now.y > el.top);
	},

	stop: function(){
		this.checkDroppables();
		if (this.overed && !this.out) this.overed.fireEvent('drop', [this.element, this]);
		else this.element.fireEvent('emptydrop', this);
		this.parent();
		return this;
	}

});

Element.extend({

	makeDraggable: function(options){
		return new Drag.Move(this, options);
	}

});

var XHR = new Class({

	Implements: [Chain, Events, Options],

	options: {
		method: 'post',
		async: true,
		data: null,
		urlEncoded: true,
		encoding: 'utf-8',
		autoCancel: false,
		headers: {},
		isSuccess: null
	},

	setTransport: function(){
		this.transport = (window.XMLHttpRequest) ? new XMLHttpRequest() : (Client.Engine.ie ? new ActiveXObject('Microsoft.XMLHTTP') : false);
	},

	initialize: function(){
		var params = $A(arguments).associate({'url': 'string', 'options': 'object'});
		this.url = params.url;
		this.setTransport();
		this.setOptions(params.options);
		this.options.isSuccess = this.options.isSuccess || this.isSuccess;
		this.headers = $merge(this.options.headers);
		if (this.options.urlEncoded && this.options.method != 'get'){
			var encoding = (this.options.encoding) ? '; charset=' + this.options.encoding : '';
			this.setHeader('Content-type', 'application/x-www-form-urlencoded' + encoding);
		}
		this.setHeader('X-Requested-With', 'XMLHttpRequest');
	},

	onStateChange: function(){
		if (this.transport.readyState != 4 || !this.running) return;
		this.running = false;
		this.status = 0;
		$try(function(){
			this.status = this.transport.status;
		}, this);
		if (this.options.isSuccess.call(this, this.status)) this.onSuccess();
		else this.onFailure();
		this.transport.onreadystatechange = $empty;
	},

	isSuccess: function(){
		return ((this.status >= 200) && (this.status < 300));
	},

	onSuccess: function(){
		this.response = {
			text: this.transport.responseText,
			xml: this.transport.responseXML
		};
		this.fireEvent('onSuccess', [this.response.text, this.response.xml]);
		this.callChain();
	},

	onFailure: function(){
		this.fireEvent('onFailure', this.transport);
	},

	setHeader: function(name, value){
		this.headers[name] = value;
		return this;
	},

	getHeader: function(name){
		return $try(function(name){
			return this.getResponseHeader(name);
		}, this.transport, name) || null;
	},

	send: function(url, data){
		if (this.options.autoCancel) this.cancel();
		else if (this.running) return this;
		this.running = true;
		if (data && this.options.method == 'get'){
			url = url + (url.contains('?') ? '&' : '?') + data;
			data = null;
		}
		this.transport.open(this.options.method.toUpperCase(), url, this.options.async);
		this.transport.onreadystatechange = this.onStateChange.bind(this);
		if ((this.options.method == 'post') && this.transport.overrideMimeType) this.setHeader('Connection', 'close');
		for (var type in this.headers){
			try{
				this.transport.setRequestHeader(type, this.headers[type]);
			} catch(e){
				this.fireEvent('onException', [e, type, this.headers[type]]);
			}
		}
		this.fireEvent('onRequest');
		this.transport.send($pick(data, null));
		if (!this.options.async) this.onStateChange();
		return this;
	},

	request: function(data){
		return this.send(this.url, data || this.options.data);
	},

	cancel: function(){
		if (!this.running) return this;
		this.running = false;
		this.transport.abort();
		this.transport.onreadystatechange = $empty;
		this.setTransport();
		this.fireEvent('onCancel');
		return this;
	}

});

var Ajax = new Class({

	Extends: XHR,

	options: {
		update: null,
		evalScripts: false,
		evalResponse: false
	},

	initialize: function(url, options){
		this.parent(url, options);
		this.addEvent('onSuccess', this.onComplete, true);
		if (!['post', 'get'].contains(this.options.method)){
			this._method = '_method=' + this.options.method;
			this.options.method = 'post';
		}
		this.setHeader('Accept', 'text/javascript, text/html, application/xml, text/xml, */*');
	},

	onComplete: function(){
		if (this.options.update) $(this.options.update).empty().setHTML(this.response.text);
		if (this.options.evalScripts || this.options.evalResponse) this.evalScripts();
		this.fireEvent('onComplete', [this.response.text, this.response.xml], 20);
	},

	request: function(data){
		data = data || this.options.data;
		switch ($type(data)){
			case 'element': data = $(data).toQueryString(); break;
			case 'object': data = Object.toQueryString(data);
		}
		if (this._method) data = (data) ? [this._method, data].join('&') : this._method;
		return this.parent(data);
	},

	evalScripts: function(){
		var script, scripts;
		if (this.options.evalResponse || (/(ecma|java)script/).test(this.getHeader('Content-type'))){
			scripts = this.response.text;
		} else {
			scripts = [];
			var regexp = /<script[^>]*>([\s\S]*?)<\/script>/gi;
			while ((script = regexp.exec(this.response.text))) scripts.push(script[1]);
			scripts = scripts.join('\n');
		}
		if (scripts) (window.execScript) ? window.execScript(scripts) : window.setTimeout(scripts, 0);
	}

});

Object.toQueryString = function(source){
	var queryString = [];
	for (var property in source) queryString.push(encodeURIComponent(property) + '=' + encodeURIComponent(source[property]));
	return queryString.join('&');
};

Element.extend({

	send: function(options){
		return new Ajax(this.getProperty('action'), $merge({method: 'post'}, options)).request(this.toQueryString());
	},

	update: function(url, options){
		var update = this.$attributes.update;
		if (!update) update = this.$attributes.update = new Ajax({update: this, method: 'get', autoCancel: true});
		if (options) update.setOptions(options);
		update.url = url;
		return update.request();
	}

});

var Cookie = new Abstract({

	options: {
		domain: false,
		path: false,
		duration: false,
		secure: false
	},

	set: function(key, value, options){
		options = $merge(this.options, options);
		value = encodeURIComponent(value);
		if (options.domain) value += '; domain=' + options.domain;
		if (options.path) value += '; path=' + options.path;
		if (options.duration){
			var date = new Date();
			date.setTime(date.getTime() + options.duration * 24 * 60 * 60 * 1000);
			value += '; expires=' + date.toGMTString();
		}
		if (options.secure) value += '; secure';
		document.cookie = key + '=' + value;
		return $extend(options, {'key': key, 'value': value});
	},

	get: function(key){
		var value = document.cookie.match('(?:^|;)\\s*' + key.escapeRegExp() + '=([^;]*)');
		return value ? decodeURIComponent(value[1]) : false;
	},

	remove: function(cookie, options){
		if ($type(cookie) == 'object') this.set(cookie.key, '', $merge(cookie, {duration: -1}));
		else this.set(cookie, '', $merge(options, {duration: -1}));
	}

});

var Json = {

	encode: function(obj){
		switch ($type(obj)){
			case 'string':
				return '"' + obj.replace(/[\x00-\x1f\\"]/g, Json.$replaceChars) + '"';
			case 'array':
				return '[' + obj.map(Json.encode).filter($defined).join(',') + ']';
			case 'object':
				var string = [];
				for (var prop in obj){
					var val = Json.encode(obj[prop]);
					if ($defined(val)) string.push(Json.encode(prop) + ':' + val);
				}
				return '{' + string.join(',') + '}';
			case 'number':
			case 'boolean': return String(obj);
			case false: return 'null';
		}
		return null;
	},

	$specialChars: {'\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"' : '\\"', '\\': '\\\\'},

	$replaceChars: function(chr){
		return Json.$specialChars[chr] || '\\u00' + Math.floor(chr.charCodeAt() / 16).toString(16) + (chr.charCodeAt() % 16).toString(16);
	},

	decode: function(string, secure){
		if ($type(string) != 'string' || !string.length) return null;
		if (secure && !(/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(string.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, ''))) return null;
		return eval('(' + string + ')');
	}

};

var Asset = new Abstract({

	javascript: function(source, properties){
		properties = $merge({
			'onload': $empty
		}, properties);
		var script = new Element('script', {'src': source}).addEvents({
			'load': properties.onload,
			'readystatechange': function(){
				if (this.readyState == 'complete') this.fireEvent('load');
			}
		});
		delete properties.onload;
		return script.setProperties(properties).inject(document.head);
	},

	css: function(source, properties){
		return new Element('link', $merge({
			'rel': 'stylesheet', 'media': 'screen', 'type': 'text/css', 'href': source
		}, properties)).inject(document.head);
	},

	image: function(source, properties){
		properties = $merge({
			'onload': $empty,
			'onabort': $empty,
			'onerror': $empty
		}, properties);
		var image = new Image();
		var element = $(image) || new Element('img');
		['load', 'abort', 'error'].each(function(name){
			var type = 'on' + name;
			var event = properties[type];
			delete properties[type];
			image[type] = function(){
				if (!image) return;
				if (!element.parentNode){
					element.width = image.width;
					element.height = image.height;
				}
				image = image.onload = image.onabort = image.onerror = null;
				event.call(element);
				element.fireEvent(name, element, 1);
			}
		});
		image.src = element.src = source;
		if (image && image.width) image.onload.delay(1);
		return element.setProperties(properties);
	},

	images: function(sources, options){
		options = $merge({
			onComplete: $empty,
			onProgress: $empty
		}, options);
		if (!sources.push) sources = [sources];
		var images = [];
		var counter = 0;
		sources.each(function(source){
			var img = new Asset.image(source, {
				'onload': function(){
					options.onProgress.call(this, counter, sources.indexOf(source));
					counter++;
					if (counter == sources.length) options.onComplete();
				}
			});
			images.push(img);
		});
		return new Elements(images);
	}

});

var Accordion = new Class({
	
	Extends: Fx.Elements,

	options: {
		display: 0,
		show: false,
		height: true,
		width: false,
		opacity: true,
		fixedHeight: false,
		fixedWidth: false,
		wait: false,
		alwaysHide: false
	},

	initialize: function(){
		var params = $A(arguments).associate({'container': 'element', 'options': 'object', 'togglers': true, 'elements': true});
		this.parent(params.elements, params.options);
		this.togglers = $$(params.togglers);
		this.container = $(params.container);
		this.previous = -1;
		if (this.options.alwaysHide) this.options.wait = true;
		if ($chk(this.options.show)){
			this.options.display = false;
			this.previous = this.options.show;
		}
		if (this.options.start){
			this.options.display = false;
			this.options.show = false;
		}
		this.effects = {};
		if (this.options.opacity) this.effects.opacity = 'fullOpacity';
		if (this.options.width) this.effects.width = this.options.fixedWidth ? 'fullWidth' : 'offsetWidth';
		if (this.options.height) this.effects.height = this.options.fixedHeight ? 'fullHeight' : 'scrollHeight';
		for (var i = 0, l = this.togglers.length; i < l; i++) this.addSection(this.togglers[i], this.elements[i]);
		this.elements.each(function(el, i){
			if (this.options.show === i){
				this.fireEvent('onActive', [this.togglers[i], el]);
			} else {
				for (var fx in this.effects) el.setStyle(fx, 0);
			}
		}, this);
		if ($chk(this.options.display)) this.display(this.options.display);
	},

	addSection: function(toggler, element, pos){
		toggler = $(toggler);
		element = $(element);
		var test = this.togglers.contains(toggler);
		var len = this.togglers.length;
		this.togglers.include(toggler);
		this.elements.include(element);
		if (len && (!test || pos)){
			pos = $pick(pos, len - 1);
			toggler.injectBefore(this.togglers[pos]);
			element.injectAfter(toggler);
		} else if (this.container && !test){
			toggler.inject(this.container);
			element.inject(this.container);
		}
		var idx = this.togglers.indexOf(toggler);
		toggler.addEvent('click', this.display.bind(this, idx));
		if (this.options.height) element.setStyles({'padding-top': 0, 'border-top': 'none', 'padding-bottom': 0, 'border-bottom': 'none'});
		if (this.options.width) element.setStyles({'padding-left': 0, 'border-left': 'none', 'padding-right': 0, 'border-right': 'none'});
		element.fullOpacity = 1;
		if (this.options.fixedWidth) element.fullWidth = this.options.fixedWidth;
		if (this.options.fixedHeight) element.fullHeight = this.options.fixedHeight;
		element.setStyle('overflow', 'hidden');
		if (!test){
			for (var fx in this.effects) element.setStyle(fx, 0);
		}
		return this;
	},

	display: function(index){
		index = ($type(index) == 'element') ? this.elements.indexOf(index) : index;
		if ((this.timer && this.options.wait) || (index === this.previous && !this.options.alwaysHide)) return this;
		this.previous = index;
		var obj = {};
		this.elements.each(function(el, i){
			obj[i] = {};
			var hide = (i != index) || (this.options.alwaysHide && (el.offsetHeight > 0));
			this.fireEvent(hide ? 'onBackground' : 'onActive', [this.togglers[i], el]);
			for (var fx in this.effects) obj[i][fx] = hide ? 0 : el[this.effects[fx]];
		}, this);
		return this.start(obj);
	},

	showThisHideOpen: function(index){return this.display(index);}

});

Fx.Accordion = Accordion;

var Hash = new Class({

	length: 0,

	initialize: function(object){
		this.obj = object || {};
		this.setLength();
	},

	get: function(key){
		return (this.hasKey(key)) ? this.obj[key] : null;
	},

	hasKey: function(key){
		return (key in this.obj);
	},

	set: function(key, value){
		if (!this.hasKey(key)) this.length++;
		this.obj[key] = value;
		return this;
	},

	setLength: function(){
		this.length = 0;
		for (var p in this.obj) this.length++;
		return this;
	},

	remove: function(key){
		if (this.hasKey(key)){
			delete this.obj[key];
			this.length--;
		}
		return this;
	},

	each: function(fn, bind){
		$each(this.obj, fn, bind);
	},

	extend: function(obj){
		$extend(this.obj, obj);
		return this.setLength();
	},

	merge: function(){
		this.obj = $merge.apply(null, [this.obj].extend(arguments));
		return this.setLength();
	},

	empty: function(){
		this.obj = {};
		this.length = 0;
		return this;
	},

	getKeys: function(){
		var keys = [];
		for (var property in this.obj) keys.push(property);
		return keys;
	},

	getValues: function(){
		var values = [];
		for (var property in this.obj) values.push(this.obj[property]);
		return values;
	}

});

function $H(obj){
	return new Hash(obj);
};

Hash.Cookie = new Class({
	
	Extends: Hash,

	initialize: function(name, options){
		this.name = name;
		this.options = $extend({'autoSave': true}, options || {});
		this.load();
	},

	save: function(){
		if (this.length == 0){
			Cookie.remove(this.name, this.options);
			return true;
		}
		var str = Json.encode(this.obj);
		if (str.length > 4096) return false;
		Cookie.set(this.name, str, this.options);
		return true;
	},

	load: function(){
		this.obj = Json.decode(Cookie.get(this.name), true) || {};
		this.setLength();
	}

});

Hash.Cookie.Methods = {};
['extend', 'set', 'merge', 'empty', 'remove'].each(function(method){
	Hash.Cookie.Methods[method] = function(){
		Hash.prototype[method].apply(this, arguments);
		if (this.options.autoSave) this.save();
		return this;
	};
});

Hash.Cookie.implement(Hash.Cookie.Methods);

var Slider = new Class({

	Implements: [Events, Options],

	options: {
		onTick: function(pos){
			this.knob.setStyle(this.p, pos);
		},
		mode: 'horizontal',
		steps: 100,
		offset: 0
	},

	initialize: function(el, knob, options){
		this.element = $(el);
		this.knob = $(knob);
		this.setOptions(options);
		this.previousChange = -1;
		this.previousEnd = -1;
		this.step = -1;
		this.element.addEvent('mousedown', this.clickedElement.bind(this));
		var mod, offset;
		switch (this.options.mode){
			case 'horizontal':
				this.z = 'x';
				this.p = 'left';
				mod = {'x': 'left', 'y': false};
				offset = 'offsetWidth';
				break;
			case 'vertical':
				this.z = 'y';
				this.p = 'top';
				mod = {'x': false, 'y': 'top'};
				offset = 'offsetHeight';
		}
		this.max = this.element[offset] - this.knob[offset] + (this.options.offset * 2);
		this.half = this.knob[offset] / 2;
		this.getPos = this.element['get' + this.p.capitalize()].bind(this.element);
		this.knob.setStyle('position', 'relative').setStyle(this.p, - this.options.offset);
		var lim = {};
		lim[this.z] = [- this.options.offset, this.max - this.options.offset];
		this.drag = new Drag(this.knob, {
			limit: lim,
			modifiers: mod,
			snap: 0,
			onStart: function(){
				this.draggedKnob();
			}.bind(this),
			onDrag: function(){
				this.draggedKnob();
			}.bind(this),
			onComplete: function(){
				this.draggedKnob();
				this.end();
			}.bind(this)
		});
	},

	set: function(step){
		this.step = step.limit(0, this.options.steps);
		this.checkStep();
		this.end();
		this.fireEvent('onTick', this.toPosition(this.step));
		return this;
	},

	clickedElement: function(event){
		var position = event.page[this.z] - this.getPos() - this.half;
		position = position.limit(-this.options.offset, this.max -this.options.offset);
		this.step = this.toStep(position);
		this.checkStep();
		this.end();
		this.fireEvent('onTick', position);
	},

	draggedKnob: function(){
		this.step = this.toStep(this.drag.value.now[this.z]);
		this.checkStep();
	},

	checkStep: function(){
		if (this.previousChange != this.step){
			this.previousChange = this.step;
			this.fireEvent('onChange', this.step);
		}
	},

	end: function(){
		if (this.previousEnd !== this.step){
			this.previousEnd = this.step;
			this.fireEvent('onComplete', this.step + '');
		}
	},

	toStep: function(position){
		return Math.round((position + this.options.offset) / this.max * this.options.steps);
	},

	toPosition: function(step){
		return this.max * step / this.options.steps;
	}

});

var Tips = new Class({

	Implements: [Events, Options],

	options: {
		onShow: function(tip){
			tip.setStyle('visibility', 'visible');
		},
		onHide: function(tip){
			tip.setStyle('visibility', 'hidden');
		},
		maxTitleChars: 30,
		showDelay: 100,
		hideDelay: 100,
		className: 'tool',
		offsets: {'x': 16, 'y': 16},
		fixed: false
	},

	initialize: function(elements, options){
		this.setOptions(options);
		this.toolTip = new Element('div', {
			'class': this.options.className + '-tip',
			'styles': {
				'position': 'absolute',
				'top': '0',
				'left': '0',
				'visibility': 'hidden'
			}
		}).inject(document.body);
		this.wrapper = new Element('div').inject(this.toolTip);
		$$(elements).each(this.build, this);
	},

	build: function(el){
		el.$attributes.myTitle = (el.href && el.getTag() == 'a') ? el.href.replace('http://', '') : (el.rel || false);
		if (el.title){
			var dual = el.title.split('::');
			if (dual.length > 1){
				el.$attributes.myTitle = dual[0].trim();
				el.$attributes.myText = dual[1].trim();
			} else {
				el.$attributes.myText = el.title;
			}
			el.removeProperty('title');
		} else {
			el.$attributes.myText = false;
		}
		if (el.$attributes.myTitle && el.$attributes.myTitle.length > this.options.maxTitleChars)
			el.$attributes.myTitle = el.$attributes.myTitle.substr(0, this.options.maxTitleChars - 1) + "&hellip;";
		el.addEvent('mouseenter', function(event){
			this.start(el);
			if (!this.options.fixed) this.locate(event);
			else this.position(el);
		}.bind(this));
		if (!this.options.fixed) el.addEvent('mousemove', this.locate.bind(this));
		var end = this.end.bind(this);
		el.addEvent('mouseleave', end);
		el.addEvent('trash', end);
	},

	start: function(el){
		this.wrapper.empty();
		if (el.$attributes.myTitle){
			this.title = new Element('span').inject(
				new Element('div', {'class': this.options.className + '-title'}
			).inject(this.wrapper)).setHTML(el.$attributes.myTitle);
		}
		if (el.$attributes.myText){
			this.text = new Element('span').inject(
				new Element('div', {'class': this.options.className + '-text'}
			).inject(this.wrapper)).setHTML(el.$attributes.myText);
		}
		$clear(this.timer);
		this.timer = this.show.delay(this.options.showDelay, this);
	},

	end: function(event){
		$clear(this.timer);
		this.timer = this.hide.delay(this.options.hideDelay, this);
	},

	position: function(element){
		var pos = element.getPosition();
		this.toolTip.setStyles({
			'left': pos.x + this.options.offsets.x,
			'top': pos.y + this.options.offsets.y
		});
	},

	locate: function(event){
		var win = {'x': Client.getWidth(), 'y': Client.getHeight()};
		var scroll = {'x': Client.getScrollLeft(), 'y': Client.getScrollTop()};
		var tip = {'x': this.toolTip.offsetWidth, 'y': this.toolTip.offsetHeight};
		var prop = {'x': 'left', 'y': 'top'};
		for (var z in prop){
			var pos = event.page[z] + this.options.offsets[z];
			if ((pos + tip[z] - scroll[z]) > win[z]) pos = event.page[z] - this.options.offsets[z] - tip[z];
			this.toolTip.setStyle(prop[z], pos);
		};
	},

	show: function(){
		if (this.options.timeout) this.timer = this.hide.delay(this.options.timeout, this);
		this.fireEvent('onShow', [this.toolTip]);
	},

	hide: function(){
		this.fireEvent('onHide', [this.toolTip]);
	}

});